An edge-colored cycle is rainbow if its edges are colored with distinct colors. A Gallai (multi)graph is a simple, complete, edge-colored (multi)graph lacking rainbow triangles. As has been previously shown for Gallai graphs, we show that Gallai multigraphs admit a simple iterative construction. We then use this structure to prove Ramsey-type results within Gallai colorings. Moreover, we show that Gallai multigraphs give rise to a surprising and highly structured decomposition into directed trees
@article{bwmeta1.element.doi-10_7151_dmgt_1740, author = {Alexander Halperin and Colton Magnant and Kyle Pula}, title = {A decomposition of gallai multigraphs}, journal = {Discussiones Mathematicae Graph Theory}, volume = {34}, year = {2014}, pages = {331-352}, zbl = {1290.05075}, language = {en}, url = {http://dml.mathdoc.fr/item/bwmeta1.element.doi-10_7151_dmgt_1740} }
Alexander Halperin; Colton Magnant; Kyle Pula. A decomposition of gallai multigraphs. Discussiones Mathematicae Graph Theory, Tome 34 (2014) pp. 331-352. http://gdmltest.u-ga.fr/item/bwmeta1.element.doi-10_7151_dmgt_1740/
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